These balls measure approx. 2.8 inches in diameter. The size may be slightly different due to manual handmade. It s safe for your pet to chew meet your pet s instinct to chew and at the same time promote clean and healthy teeth These are fun play chew toys for your pet. Your pets may push nudge nibble or chew these ball toy which helps release cage boredom Package included 5 pieces a great value pack.